【正文】 ................................ 3 三 . 設(shè)計(jì)內(nèi)容與要求 ...................................................................................................... 3 設(shè)計(jì)計(jì)算 .......................................................................................................................... 4 一 . 精餾塔的物料衡算 ................................................................................................... 4 原料液及塔頂、塔底產(chǎn)品的摩爾分?jǐn)?shù) ................................................................. 4 原料液及塔頂、塔底產(chǎn)品的平均摩爾質(zhì) 量 .......................................................... 4 物料衡算原料處理量 ........................................................................................... 4 二 . 理論塔板的計(jì)算 ...................................................................................................... 5 . 理論塔板數(shù)的的求取 ........................................................................................ 5 三 . 精餾段的工藝條件及有關(guān)物性數(shù)據(jù)的衡算 ................................................................ 6 操作壓力計(jì)算 .................................................................................................... 6 操作溫度計(jì)算 .................................................................................................... 6 平均摩爾質(zhì)量計(jì)算 ............................................................................................. 7 平均密度計(jì)算 .................................................................................................... 8 液相平均表面張力計(jì)算 ..................................................................................... 9 混合物的平均粘度 ........................................................................................... 10 四．精餾塔的塔體工藝尺寸計(jì)算 ..................................................................................... 11 塔徑的計(jì)算 ..................................................................................................... 11 有效高度計(jì)算 .................................................................................................... 13 五．塔板主要工藝尺寸的計(jì)算 ........................................................................................ 13 溢流裝置的計(jì)算 .............................................................................................. 13 . 塔板 分布 ........................................................................................................ 15 六 . 篩板的流體力學(xué)計(jì)算 ............................................................................................. 16 塔板的壓降 ..................................................................................................... 16 液面落差 ......................................................................................................... 17 液沫夾帶 ......................................................................................................... 18 漏液 ................................................................................................................ 18 液泛 ................................................................................................................ 19 七 . 塔板負(fù)荷性能圖 ...................................................................................................... 20 漏液線(xiàn) ............................................................................................................ 20 液沫夾帶線(xiàn) ..................................................................................................... 21 液相負(fù)荷下限線(xiàn) .............................................................................................. 22 液相負(fù)荷上限線(xiàn) .............................................................................................. 23 液泛線(xiàn) ............................................................................................................ 23 八 .篩板塔設(shè)計(jì)計(jì)算結(jié)果 ................................................................................................. 25 九 .塔附件的設(shè)計(jì) ........................................................................................................... 27 2 接管 ............................................................................................................... 27 進(jìn)料管 ................................................................................................. 27 回流管 ................................................................................................. 28 塔底出料管 .......................................................................................... 28 塔頂蒸汽出料管 ................................................................................... 28 塔底進(jìn)氣管 .......................................................................................... 28 筒體與封頭 .................................................................................................... 29 筒體 ...............................................................................................